HP Jetdirect 175x Print Server series - Manual (Page 89)

Is the Power/Status light ON green—either
solidly on or flickering irregularly?
for HP Jetdirect 175x external print server/Internet connector for USB
and HP Jetdirect 310x external print server/Internet connector for USB
power/status light
power receptacle
Check the power/status light on your print server. It should be ON, bright green in color and either
glowing continuously or flickering irregularly—but not blinking in a regular pattern. If it is not ON solid
green (that is, either off or regularly blinking amber or green), please follow the troubleshooting steps
below.
For all of the steps below, note that when you first apply power to a normally operating print server, the
power/status light will slowly blink green for several seconds during self-test, and then go ON solid
green when the unit is ready for operation. When it has network traffic it flickers green, irregularly with
the traffic.
1. Check that the Jetdirect power module is plugged into a suitable power source (typically a wall
outlet), and that the power connector is plugged into the print server.
Note: The power module shown below is the North American version. The plug pattern may be
different in other countries/regions of the world.